MS Sample Set 10, Round 7 from NSB
Approximately what percentage of energy used by an incandescent lightbulb is converted to light? W) 10 X) 30 Y) 50 Z) 70
W: W) 10
X: X) 30
Y: Y) 50
Z: Z) 70
Answer: W) W) 10
Which of the following is NOT a baseload power source? W) Coal X) Geothermal Y) Solar Z) Natural gas
W: W) Coal
X: X) Geothermal
Y: Y) Solar
Z: Z) Natural gas
Answer: Y) Y) Solar
Which of the following is a unit for air pressure? W) Isotherm X) Degree Y) Millibar Z) Newton
W: W) Isotherm
X: X) Degree
Y: Y) Millibar
Z: Z) Newton
Answer: Y) Y) Millibar
In which of the following disciplines is there NOT a prize awarded by the Nobel committee? W) Medicine X) Chemistry Y) Biology Z) Physics
W: W) Medicine
X: X) Chemistry
Y: Y) Biology
Z: Z) Physics
Answer: Y) Y) Biology
Charles Darwin studied what type of bird before positing his theory of natural selection?
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Pollination of flowering plant species is carried out primarily by which of the following? W) Wind X) Insects Y) Birds Z) Mammals
W: W) Wind
X: X) Insects
Y: Y) Birds
Z: Z) Mammals
Answer: X) X) Insects
Which of the following minerals is softest? W) Quartz X) Topaz Y) Calcite Z) Orthoclase
W: W) Quartz
X: X) Topaz
Y: Y) Calcite
Z: Z) Orthoclase
Answer: Y) Y) Calcite
Identify all of the following four processes of the water cycle that remove water vapor from Earth’s atmosphere: 1) Deposition; 2) Transpiration; 3) Sublimation; 4) Precipitation
Choices:
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Round 4,197.56 to the nearest hundred.
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To the nearest whole number, what is the length of the hypotenuse in a right triangle with legs of length 14 and 9?
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When an object’s mass doubles and its velocity stays the same, by what factor is its kinetic energy multiplied? W) 1/4 X) 1/2 Y) 2 Z) 4
W: W) 1/4
X: X) 1/2
Y: Y) 2
Z: Z) 4
Answer: Y) Y) 2
What type of heat transfer causes your bread to be heated in a toaster?
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What renewable chemical, commonly derived from corn, is regularly added to gasoline in the United States?
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Identify all of the following 3 sources from which bioenergy can be derived: 1) Plants; 2) Forest waste; 3) Household waste.
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Scientists in which of the following branches of Earth science are most likely to use a submersible, sonar, and bathymetry as tools? W) Astronomy X) Oceanography Y) Hydrology Z) Meteorology
W: W) Astronomy
X: X) Oceanography
Y: Y) Hydrology
Z: Z) Meteorology
Answer: X) X) Oceanography
To extinguish a fire in a beaker containing a solvent, the first step should be to: W) Cover the beaker with a glass plate X) Pour water over the solvent Y) Use a class D extinguisher Z) Blow quickly and forcefully across the top of the beaker
W: W) Cover the beaker with a glass plate
X: X) Pour water over the solvent
Y: Y) Use a class D extinguisher
Z: Z) Blow quickly and forcefully across the top of the beaker
Answer: W) W) Cover the beaker with a glass plate
Conservation biology tries to preserve which of the following ecosystem characteristics? W) Large population size for all inhabiting species X) Large population size for all inhabiting mammals Y) Elevated biodiversity for all forms of life Z) Elevated biodiversity for all macroscopic forms of life
W: W) Large population size for all inhabiting species
X: X) Large population size for all inhabiting mammals
Y: Y) Elevated biodiversity for all forms of life
Z: Z) Elevated biodiversity for all macroscopic forms of life
Answer: Y) Y) Elevated biodiversity for all forms of life
What group of signaling proteins increases the resistance of cells against viral attack?
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If two concentric circles have radii of 4 and 11, respectively, what is the area of the region between them?
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Solve the following equation for x: x/3 + 5 = 2x + ½.
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Of solids, liquids, and gases, which of them can conduct thermal energy? W) Solids only X) Liquids only Y) Solids and liquids only Z) Solids, liquids and gases
W: W) Solids only
X: X) Liquids only
Y: Y) Solids and liquids only
Z: Z) Solids, liquids and gases
Answer: Z) Z) Solids, liquids and gases
Atoms of what two elements are less massive than lithium?
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What blue star is the brightest star in the constellation Orion?
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Which of the following rock types is most likely to contain organic matter? W) Metamorphic X) Sedimentary Y) Extrusive igneous Z) Intrusive igneous
W: W) Metamorphic
X: X) Sedimentary
Y: Y) Extrusive igneous
Z: Z) Intrusive igneous
Answer: X) X) Sedimentary
Evaluate –5 × (–3a – 4b) when a = 12 and b = 12.
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The sum of three numbers is 50. The smallest number is one-sixth the largest number. The sum of the two largest numbers is 45. What is the middle number?
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As the wavelength of a wave increases, what happens to its frequency if the speed is constant?
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As coal is turned into electricity to run a computer, its energy will take several forms. Arrange the following types of energy into the order they will appear during this transformation: 1) Electrical; 2) Chemical; 3) Heat; 4) Mechanical.
Choices:
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Which of the following allows fungi to feed more efficiently? W) Fruiting Body X) Mycelium Y) Spores Z) Chitin
W: W) Fruiting Body
X: X) Mycelium
Y: Y) Spores
Z: Z) Chitin
Answer: X) X) Mycelium
What part of a plant embryo develops into the roots?
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Which of the following best explains why Erlenmeyer flasks are good for mixing samples? W) Magnetic stirrers can easily enter and exit the mouth X) They have straight sides that allow for complete mixing Y) They have slanted sides that prevent spilling and don’t require additional stirring equipment Z) Their narrow necks make pouring and transferring spill resistant
W: W) Magnetic stirrers can easily enter and exit the mouth
X: X) They have straight sides that allow for complete mixing
Y: Y) They have slanted sides that prevent spilling and don’t require additional stirring equipment
Z: Z) Their narrow necks make pouring and transferring spill resistant
Answer: Y) Y) They have slanted sides that prevent spilling and don’t require additional stirring equipment
What is the SI unit for temperature?
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What U.S. state produced the most energy via hydropower in 2014?
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What is the chemical name of the gas found within underground coal beds that can be recovered and used as natural gas?
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Which of the following is most responsible for the change of seasons? W) The phases of the Moon X) The distribution of continents and oceans Y) The tilt of Earth’s axis Z) The elliptical shape of Earth’s orbit
W: W) The phases of the Moon
X: X) The distribution of continents and oceans
Y: Y) The tilt of Earth’s axis
Z: Z) The elliptical shape of Earth’s orbit
Answer: Y) Y) The tilt of Earth’s axis
The color of a star is most closely related to which of its other properties? W) Composition X) Pressure Y) Temperature Z) Magnetism
W: W) Composition
X: X) Pressure
Y: Y) Temperature
Z: Z) Magnetism
Answer: Y) Y) Temperature
What is the common name of the NH₄⁺ ion?
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What is the speed of light, in meters per second and in scientific notation with one significant figure, through a medium with a refractive index of 1.5?
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If a right triangle has an exterior angle of measure 175°, what is the degree measure of the larger of its acute interior angles?
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What are the mean and median, respectively, of the following list of six numbers: 10, 2, 5, 7, 3, 9?
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Which of the following forces always causes a loss of energy in a mechanical system? W) Gravitational X) Normal Y) Buoyancy Z) Friction
W: W) Gravitational
X: X) Normal
Y: Y) Buoyancy
Z: Z) Friction
Answer: Z) Z) Friction
Which of the following is a diprotic acid? W) HCl X) H₂SO₄ Y) H₃PO₄ Z) HC₂H₃O₂
W: W) HCl
X: X) H₂SO₄
Y: Y) H₃PO₄
Z: Z) HC₂H₃O₂
Answer: X) X) H₂SO₄
Which of the following best describes why Earth has a magnetic field? W) The inner core contains solid iron X) The outer core contains liquid iron Y) The Moon exerts a gravitational pull Z) The Sun exerts a gravitational pull
W: W) The inner core contains solid iron
X: X) The outer core contains liquid iron
Y: Y) The Moon exerts a gravitational pull
Z: Z) The Sun exerts a gravitational pull
Answer: X) X) The outer core contains liquid iron
The Nazca Plate is located off the western margin of what continent?
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What two structures in humans contain hydroxyapatite?
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Which of the following adjectives best describes the spores that are produced during fungal asexual reproduction? W) Haploid X) Diploid Y) Heterokaryotic Z) Zygotic
W: W) Haploid
X: X) Diploid
Y: Y) Heterokaryotic
Z: Z) Zygotic
Answer: W) W) Haploid